초록 |
Recently, numerous emerging thin and flexible sensor technologies have been made for realization of practical use of cost-efficient healthcare devices, showing high sensitivity, stretchability, skin/organ-conformity, and often transparency. In this respect, we developed the facile/cost-efficient method for fabricating sensor array having self-aligned, conductive, and lithography-less patterns, which is capable of high adaptability with intimate contacts between device and rough surface. The sensing network of device was consisted of stacked layers of graphene nano-platelets, which can be spontaneously collected and arranged via the Marangoni self-assembly on liquid surface. We proceeded to demonstrate that our conductive layered-architectures can be used for a skin-conformal sensor monitoring amplified waveforms, a mechanical/thermal-sensitive electric rubber-balloon, and an electric blood vessel, suggesting promising method toward expeditious diagnosis of cardiovascular illnesses. |